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Decompression (diving) – Pressure reduction and its effects during ascent from depth; Decompression sickness – Disorder caused by dissolved gases forming bubbles in tissues; Decompression theory – Theoretical modelling of decompression physiology; Dive computer – Instrument to calculate decompression status in real time
The decompression tables or software used to plan the dive, [22] The equipment used to control and monitor depth and dive time, such as: personal dive computers, depth gauges, and timers, [23] Shot lines, surface marker buoys (SMBs), Decompression buoys (DSMBs) and decompression trapezes [23] diving stages (baskets), wet and dry bells,
Decompression may be shortened ("accelerated") by breathing an oxygen-rich "decompression gas" such as a nitrox blend or pure oxygen. The high partial pressure of oxygen in such decompression mixes produces the effect known as the oxygen window. [1] This decompression gas is often carried by scuba divers in side-slung cylinders.
The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been derived. The original C&R tables used a classic multiple independent parallel compartment model based on the work of J.S.Haldane in England in the early 20th century, using a critical ratio exponential ingassing and outgassing model.
Experts say vehicle-based attacks are simple for a 'lone wolf' terrorist to plan and execute, and challenging for authorities to prevent.
During a year off from studies, Huggins trained as a diving instructor, and later assisted on an instructor training program with Dan Orr and Lee Somers at Wright State University, during which he gave a lecture on decompression models and early dive computers, and met Craig Barshinger, who had recently stated a company named Orca to develop and market microprocessor based dive computers.
A similar emergency occurs when a scuba diver accumulates more decompression obligation than the available gas endurance for decompression. This can happen either by the diver being unable to ascend in time to avoid the problem, or by using up or losing gas supply due to circumstances or inattention.
Scuba diver decompressing at a planned stop during ascent from a dive. Decompression theory is the study and modelling of the transfer of the inert gas component of breathing gases from the gas in the lungs to the tissues and back during exposure to variations in ambient pressure.